themes-wordpress/seedlet/assets/sass/blocks/navigation/_style.scss

.wp-block-navigation {
    .wp-block-navigation-link {
        padding: 0;

        .wp-block-navigation-link__content {
            padding: var(--primary-nav--padding);
        }

        .wp-block-navigation-link__label {
            font-family: var(--primary-nav--font-family);
            font-size: var(--primary-nav--font-size);
            font-weight: var(--primary-nav--font-weight);
        }
    }

    .wp-block-navigation-link__submenu-icon {
        padding: 0;
    }

    // Top level navigation container.
    > .wp-block-navigation__container {
        .has-child {
            .wp-block-navigation-link {
                display: inherit;
            }

            .wp-block-navigation__container {
                border: none;
                left: 0;
                margin-left: var(--primary-nav--padding);
                min-width: max-content;
                opacity: 0; 
                padding: 0;
                position: inherit;
                top: inherit;

                .wp-block-navigation-link {
                    .wp-block-navigation-link__content {
                        display: inline-block;
                        padding: calc( 0.5 * var(--primary-nav--padding) ) var(--primary-nav--padding);
                    }
                }

                .wp-block-navigation-link__submenu-icon {
                    display: none;
                }
            }
            &:hover, &:focus-within {
                .wp-block-navigation__container {
                    display: block;
                    opacity: 1;
                    visibility: visible;
                }
            }
        }
    }

    > .wp-block-navigation__container {
        > .has-child {
            > .wp-block-navigation__container {
                background: var(--global--color-background);
                box-shadow: var(--global--elevation);
                margin: 0;
                padding: 0;
                position: absolute;
                top: 100%;
            }
        }
    }
    
    &:not(.has-text-color){
        .wp-block-navigation-link {
            > a {
                &:hover, &:focus {
                    color: var(--primary-nav--color-link-hover);
                }
            }
        }

        .wp-block-navigation-link__content {
            color: currentColor;
        }
    }
}